CVE-2021-31863

Name: CVE-2021-31863
Creator: NVD / NIST
Published: 2021-04-28T07:15:07.583+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.74%

Last modified Jun 17, 2026

CVE-2021-31863 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Insufficient input validation in the Git repository integration of Redmine before 4.0.9, 4.1.x before 4.1.3, and 4.2.x before 4.2.1 allows Redmine users to read arbitrary local files accessible by the application server process.. EPSS estimates a 1.74% chance of exploitation in the next 30 days.

Description

Insufficient input validation in the Git repository integration of Redmine before 4.0.9, 4.1.x before 4.1.3, and 4.2.x before 4.2.1 allows Redmine users to read arbitrary local files accessible by the application server process.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.74%

74.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Redmine	Redmine	< 4.0.9
Redmine	Redmine	>= 4.1.0, < 4.1.3
Redmine	Redmine	>= 4.2.0, < 4.2.1
Debian	Debian Linux	9.0

References

https://lists.debian.org/debian-lts-announce/2021/05/msg00013.htmlMailing List, Third Party Advisory
https://www.redmine.org/news/131Vendor Advisory
https://www.redmine.org/projects/redmine/wiki/Security_AdvisoriesVendor Advisory
https://lists.debian.org/debian-lts-announce/2021/05/msg00013.htmlMailing List, Third Party Advisory
https://www.redmine.org/news/131Vendor Advisory
https://www.redmine.org/projects/redmine/wiki/Security_AdvisoriesVendor Advisory

Timeline

Published: Apr 28, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31863?

How severe is CVE-2021-31863?

CVE-2021-31863 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.74% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31863?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-31863?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST